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Honeywell 51304362-150
Product Name: MC-PLAM02 Low-Level Analog Input Multiplexer Processor (LLMux IOP)
Introduction: The 51304362-150 (MC-PLAM02) is a Low-Level Analog Input Multiplexer Processor designed for UCN/HPM process automation systems. It aggregates, conditions, and digitizes low-level analog signals from field termination assemblies, serving as the primary acquisition interface for thermocouples, RTDs, and low-level sensors.
Detailed content
Technical Specifications:
- Model: MC-PLAM02
- Type: Low-Level Analog Input Multiplexer Processor (LLMux IOP)
- Channel Capacity: Up to 32 inputs via two 16-input FTAs
- Compatible FTAs: MU-TAMT series (CE and non-CE variants)
- Signal Handling: Precision amplification, multiplexing, high-resolution A/D conversion
- Operating Temperature: –20°C to +70°C
- Storage Temperature: –40°C to +85°C
- Conformal Coating: Yes (for moisture, contaminant, and vibration resistance)
- Approximate Weight: 0.6–0.62 kg
- Compliance: CE-compliant variant available
Features: High-density low-level analog acquisition (up to 32 channels). Precision signal conditioning and amplification before multiplexing. Compatible with Honeywell’s MU-TAMT FTA family. Conformal coating provides long-term reliability in distributed control installations.
Applications: Sensor acquisition and distributed I/O in UCN/HPM process control systems, including precision measurement from low-level field devices such as thermocouples and resistance temperature detectors in process industries.
Working Principle: Low-level analog signals from field sensors arrive via the FTA. The module amplifies and conditions each signal, then multiplexes them into a high-resolution A/D converter. The resulting digital values are passed to the controller over the UCN backplane.
Installation Requirements: Mount in a standard Honeywell I/O chassis slot. Connect two MU-TAMT series FTAs (each handling 16 inputs). Verify the FTA selection matches the sensor type (thermocouple vs. RTD) and the CE or non-CE version required by the installation. Ensure the backplane 5 VDC supply is energized.
Precautions: Maintain operating temperature within –20°C to +70°C. Because the module handles microvolt-level signals, use proper shielded, twisted-pair thermocouple/RTD extension wire and avoid running signal cables parallel to high-voltage conductors. Inspect the conformal coating periodically in corrosive environments.
